About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
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Symposium
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Atomistic Simulations Linked to Experiments to Understand Mechanical Behavior: A MPMD Symposium in Honor of Professor Diana Farkas
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Presentation Title |
Spall Strength of Pure Solids on the Periodic Table and Its Correlation with Known Thermomechanical Properties |
Author(s) |
Robert Proctor Swallow, Justin Wilkerson |
On-Site Speaker (Planned) |
Robert Proctor Swallow |
Abstract Scope |
We derive analytical expressions for the maximum tensile pressure achieved during cold hydrostatic tension by defect-free single-element monocrystalline solids characterized by atoms obeying the Lennard-Jones (LJ) potential. These analytical expressions estimate the ultimate spall strength of monocrystalline solids on the periodic table which possess SC, BCC, FCC, HCP, or diamond lattices in terms of the two parameters of the LJ potential. We then generate estimates of the ultimate spall strength based on fitting the LJ potential to known thermomechanical properties of pure elements. Our estimates predict trends of increasing ultimate spall strength with increasing period, and the largest ultimate spall strength occurring near the middle of each period. We compare our estimates with experimental data for spall strength from laser or particle beam induced spall of single crystal elements, and find agreement with the maxima and relative ordering of spall strengths. Future work incorporating combining rules could model monocrystalline alloys. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Mechanical Properties, Computational Materials Science & Engineering |